http://e-repository.perpus.iainsalatiga.ac.id/13666
http://e-repository.perpus.iainsalatiga.ac.id/13664
http://e-repository.perpus.iainsalatiga.ac.id/14580
http://e-repository.perpus.iainsalatiga.ac.id/17515
http://e-repository.perpus.iainsalatiga.ac.id/17342
http://e-repository.perpus.iainsalatiga.ac.id/17443